LABOR'S key crossbench backers yesterday slammed the party's shambolic week but vowed they would continue to back the government until the election.

Independent MP Tony Windsor said his agreement to support the government in confidence and supply motions remained solid.

Mr Windsor voted for a Coalition motion, which was lost, to suspend standing orders to debate a "no-confidence" motion in the Prime Minister yesterday but said he never considered voting against the government if the motion had been brought.

"There's been no breach of my arrangements in terms of the government," he said.

"Kevin Rudd's proven himself more of a Costello than a Howard and he's probably gone for all time."

Greens leader Christine Milne condemned the government's infighting but declared the Greens would never help Opposition leader Tony Abbott and that the minority government had delivered "a range of really positive outcomes".

She claimed the "selfish backroom boys" in Labor were going to jeopardise "progressive reforms" proposed by the government and backed by the Greens.

"What we are going to do is stick with delivering these reforms and call on progressive voters around the country to get behind the Greens because we are united, we are strong, we are ready to take it up to them," she said.

She claimed the Labor leadership drama had overshadowed achievements and been a gift to Mr Abbott: "What a complete shambles we have seen today. The backroom boys in the Labor Party have managed to give Tony Abbott the biggest leg-up he could have wished for."

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